Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7004200 | Constant flow valve for a water softener control assembly | Mark J. Wittig, Kenneth J. Sieth, John D. Stolz | 2006-02-28 |
| 5250187 | Resin bed for liquid treatment | — | 1993-10-05 |
| 4737275 | Resin pressure sensor for water treatment | — | 1988-04-12 |
| 4668386 | Water quality monitor | J. David Seal | 1987-05-26 |
| 4385992 | Water softener control | Arlen E. Clauer | 1983-05-31 |